Bus door



June 17; 1947. G4, TRAUTVETTER BUS DOOR Filled July 24, 1945 8Sheets-Sheet l June 1 7, 1947. G. TRAUTVETTER BUS DOOR Filed July 24,1945 8 Sheets-Sheet 2 G. TRAUTVETTER BUS DOOR Filed July 24, 1945 8sheets-sheet 5 gah-4M 'MM June 17', 1947.

June 17, 1947. G, TRAUTVETTER 2,422,447

' BUS DOOR Filed July 24', 1945 8 Sheets-Sheet 4 @www Ll wm l BUS DOORFiled July 24, Y1945 8 Sheets-Sheet 5 June W9 1947, G. TRAUTVETTER BUSDOOR 8 Sheets-'Sheet 6 Filed July 24, 1945 III June 17, l947. QTRAUTVETTER 2,422,447

BUS DOOR Filed July 24, 1945 8 sheets-sheet 7 June 17, 1947.

G. TRAUTVETTER BUS DOOR Filed July 24, 1945 8 Sheets-Sheet 8 PatentedJune 17, i947 Bos Doon George Trautvetter, Jenkintown, a., assignor toHeintz Manufacturing Company, Philadelphia., Pa., .a corporation ofPennsylvania Application July 24, 194s, 'serial No. .cousu claims. (c1.ico-229) l This invention relates to doors for buses, street cars andthe like and more particularly to such a door composed of a plurality ofsections, each section comprising a plurality of panels hinged together,the outside panel of each section being hinged at its outside edge tothe door sta-iis or y the like with the inner edges of the inner panelsof each section meeting in a longitudinal line thereby forming acomplete closure for the door opening.

In the past bus doors have been constructed primarily of wood or steelor a combination of both. The present invention provides for aconstruction which is of lighter Weight, has a maximum of strength andis capable of withstanding hard usage. Preferably doors in accordancewith the invention are comprised of panels made up principally of.aluminumY extrusions, although other light metals and alloys orcombinations of the same may also bev employed. It is a principal objectof the invention to provide a door having these characteristics.

It is another object of the invention to provide a door, the hinge stileportions of which are of improved construction, making possible the useof hinge stiles which are of hollow extruded section and of aluminum orthe like.

In several of its embodiments the door surfaces are smooth and flatandare characterized by the absence of rivets or `bolt heads. vIt isanother object of the invention to provide a doorV having such surfaces.

These and other objects of the invention will become more apparent fromthe following description and claims when read in conjunction with theaccompanying drawings, in which:

Fig. 1 is a front elevation of a bus door constructed in accordance withone form of the invention.

Fig. `2 is a section on the line 2-2 of Fig. 1.

Fig. 3 is a section on the line 3-3 of Fig. 1,

Fig. 4 is a section on the line 4-4 of Fig. 1.

Fig. 5 `is a. section on the line 5-5 of Fig. l.

Fig, 6 is a section .on the line 6--6 of Fig. 1.

Fig. 7 is a section on the line 1-1 of Fig. 1.

Fig. 8 is .a fragmentary View in side elevation of Fig. 7. Y

Fig. 9 is a front elevation of a modiied for-rn.

Fig. 10 is a section on line I -ID of Fig. 9.

Fig. 11 is a section on line IIP-I-.I ofFig. 9.

Fig. 12 `is a section on line 12F-l2 of Fig, 49.

Fig. 13 is a section on line 13H-1:3 .of Fig. 9.

Fig. 14 is a front elevation of another form.

Fig. 15 is a section on line 15-15 of Fig. 14.

`2 Fig. 16 is a broken section on line 'I6- 16 ci Fig. 14.

Fig. 17 is a broken section on line Il--II of Fig.'14.

Fig. 18 is a fragmentary side elevation of a portion of Fig. 14 vshowingthe manner of mounting the window pane.

Fig. 19 is a broken front elevation of a preferred form of theinvention.

Fig. 29 is a section on the vline 29-20 of Fig. 19.

Fig. 21 is a section on the line 2 I--Zl of Fig. 19.

Fig. 22 is a section on the line 22-22 of Fig. 19.

Referring no-w specifically to that embodiment of the inventionillustrated in Figs. l to l6, inclusive, the door as a whole is composedoi two sections A and B, opening along a vertical median line. Eachsection A and .B is composed of outer panels l0, Hl and inner panels H,Il. Each of the panels l0, I0 is a substantial duplicate of the other,and the same is true of the panels l-l, il, except that the parts arereversed for right and lcfthand operation.

The panels l0 andl I1 are each comprised primai-ily of extrusions ofaluminum or the like, the shape' of which can be noted from thesectional View in Fig. 5. The outer panels l0', 10 have a stile portioni2 for receiving the door staff I3 (Figs. l and 2), a hinge stileportion H, and an intermediate iiat connecting panel wall i5, -all beingcomprised of a single extrusion. As shownv in Figs. 1 and 5, the wall 45has cut-outs for receiving the window panes 16, il.

The outer panels I0, I0 are also provided with a bottom rail I8, a toprail i9 and an intermediate rail 20. These bottom, top, and intermediaterails i8, i9 and 2 9 extend between the stile portion i2 and the hingestile |44. With reference to Figs. 2 and 4, it will ibe noted that thebottom rail Vis comprised of lsolid members 12|, 22, which are disposedon opposite surfaces of the panel wall l5. On the door staff side thepanel wall I5 and the ends .of the `solid members 2|, A22 are .engagedWithin slots in the stile portion l2 to which .they are secured by boltsor .rivets 2,3. or the like. 'Ine top rail 19 is similarly constructedof solid members 24, 25 which likewise are secured on the .door staffsidejwithn a .slot in the stiie portion i2 to which are secured by therivets or bolts 26.

The intermediate rail 2.9 is .composed of the two members 21, 2B whichfor lightness and strength are .formed as .shown .in section in Fig. 3.These members '21, 28, arevdisposed on 'opposite surffaces of thepanelwall 1.5 and they .are secured tends from the top to the bottom ofthe door. .f

Moreover, the wall 3i) of the hinge stile portion I4 is recessed on thehinge side to receive one wing 32 of the hinge 33. Thereference numeral33' indicates a hinge cover. i.

piece 35. Again, the hinge stile I4', panel wall I5and stile 34 are allconstructed of a single extrusion of aluminum or the like, The hinge`stile I4 is similar in construction to hinge stile I4 and has areinforcing strip 3 2 and is also recessed to receive theother wing 36of the hinge 33.

Like the `outer panels IILthe inner panels nII are also provided with abottom Vreinforcing rail I9', a toprail 20 and an intermediatereinforcing rail 2l These are primarily secured to the opposite surfacesof the panel -wall I5', and to the hinge stile I4 and the stile 34 bymeans of welding, but other means `for securing may be used.

Indoors of this general type the mechanism for actuating the door toopen and close the same (which forms no part of" this invention)frequently includes a bracket. v In Figs. 'I and 8, the upper portion ofstile 34 is shown-as provided with a steel reinforcing'channel member 31of U-shaped section. This is secured bymeans of the-aluminum rivets 38.YThis steel reinforcing `member 3l is for thesensitiver door `mechanismA similar reinforcing bracketl (not shown) .y member 39 is disposed instile 34 near the bottom-thereof (Fig. 1).

A modified form of the invention is illustratedin Figs. 9 to 13inclusive. Fig. 9 is a front elevation of one of the sections which iscomprisedof an outer panel 49 and an inner panel 4I hinged together. y

The outer panel is comprised ofthe two stiles.

42 andv 43 joined lby an intermediate panel wallk 44. The two stiles42,43Sand wall 44 are formed of an extrusion of aluminum or the like. Eachof the stiles 42, 43 is of rectangular section with one wall beveledV(Fig. 11) vand each is formed similarly tothe hinge stile I4 ofthe firstembodiment.. Stile 42 is secured Ato one of the main hinges 45 whilelstile 43'is` secured to one wing 46 of the hinge which joins panels and4 I. In this embodiment the hinge and the wing 46 are secured by meansof bolts 41,48 which pass through the beveled wall and through the steelreinforc-` ing strips 49, 5G. j

The inner panel' is similarly constructed but its inner stile"5Irischannel-shaped in section to receive the rubber linger piece 52. yf y Theintermediate panel walls 44; and' 44' of the panel 49, 4I areeachprovided with integral longitudinalA strengthening ribs 53, .-53 (Figs.1,9 and 12)*and each of said'walls is 4also provided withanelongatedwindow opening in whichwin- 4 dow panes 55, are mounted by means ofrubber moldings 56, 56.

At the top, the panels 40, 4I are provided with strengthening top rails51, 51 disposed on opposite sides of the panel walls 44 and 44 (Figs.

9 and 10) and bottom strengthening rails 58, 58 are likewise provided.These top and botto-m rails may bek welded or otherwise secured inplace. v

Another form of the invention is illustrated in Figs. 14 to 18inclusive. Here each section'is also made up of inner and outer panels.One outer panel 59 and one inner panel 60 joined together Each innerpanel II is constructed 4similarly I5 in whichare.

SOI

vbyva hinge 6I are illustrated in Fig. 14. In this instancethe outerpanel 59 is, in section, in the form of aparallelogram having front andback walls 62, 63 and angled end walls 64, 65. The end'walls arerecessed on their inner surfaces to receive. the steel reinforcingstrips 66, 61. End wall 64 is secured to main hinge 68 by means of bolts99 whichY pass therethrough and also through reinforcing strips 66. Endwall 65 is se.

curedto Yhinge 6I ini a similarumanner. Hollow outer panel 59 isprovided with a cross partition 'Ill for rigidity. n Y

Inner panel 6l) is similar but as shown in Fig. 17 it terminates inachannel portion 'Il for receiving the rubber finger piece l2.

The hollow panels 59 and 69 may be provided with openings for windowpanes l2, 13, which may be mounted in the manner illustrated in Figs.14, 15, 16 and 18. The manner of mounting forms no part of the presentinvention. It is illustrated and described in my co-pending applicationfiled August 16, 1944, Serial No. 549,376, and patented October 3, 1945,No. 2,386,151, to which reference may be made if required.

It has been found desirable to strengthen the top and bottom.edges ofthe panels 59 and 60. This may be accomplishedby means of insertingchannelV sections .'Mand 'I5 (Fig. 15) between the front and back walls62, 63.k vThe channel sections are preferablyrwelded inplace. l

The preferred embodiment of the invention is illustrated in Figs. 19,20, 21 and 22. YIn thisk embodiment each section is again made up-of anouter panel and anlinner panel. outer panel isindicat'edby the referencenumber I6 and the innerpanelll is secured thereto by Like` the otherembodiments the beveled Wall is providedwith a slot fladj'a'cent itsinner surface to receive a reinforcing Ystrip of steel Vorthe 'like 85.'The hinge wing'83 is'sec'ured in placeby means of self-tappingscrews jwhich vpass through the hinge wing; through the beveledwall 82 andthenthrough the reinforcing strip 85.`

The hinge stile Bel'is provided with a ledge 81 which is supported by anintegral rib 8,8. *The door staff stile I9 is providedwith a similarledge` 89. -A-panelV 9Iissheet metal, such las stainless steel,y isysecured to the ledges `81 and 89 by means of theis'lf-tapping screws9-2and 93 as clearly showninFigs.21 and22., 'Y i l The inner panel r'Ilof the section is similarly "constructed except thatV the edge of` theVpanel In Fig. 19, the

opposite the hinge is provided with a tongue 94 of reduced section. Thetongue is adapted to have a rubber edging or finger piece 95 securedthereto by means of the strips 96 and 91 and rivets or the like 98 whichclamp the free edges of the rubber finger piece against the tongue.

At their top edges the outer and inner panels are each provided withrails. 'Ihe top rails are designated by the reference numerals and I0|and the bottom rails by the reference numerals |02 and |03.

Moreover, the intermediate panel walls 8| and 8| may be provided withwindow openings for receiving window panes |04 and |05. The manner inwhich these window panes are secured is illustrated in Fig. 21 fromwhich it will be seen that the edges of the window panes are disposed inrubber pieces |06 of U-shaped section which are clamped between theinner surface of the panel walls 8|, 8| adjacent the window opening andthe steel panels 9|.

In Fig. 21, two types of hinge stiles are illustrated. The differencebetween the hinge stile 80 and the hinge stile 80 being that in oneinstance the ledge is supported by the integral rib 88' which isdisposed on the hinge side of the screws 92, while in the other hingestile 80 an integral reinforcing rib 88 is disposed outwardly of thescrews 92. It will be noted that in each instance, however, the ledges81 are undercut so that the holes in the ledges for the self-tappingscrews open into space thus preventing the holes from becoming cloggedwhen the self-tapping screws are inserted in place.

The doors constructed in accordance with the examples of the inventionwhich have been given, are strong and light in construction, arecomprised of a minimum number of pieces which facilitates manufacture.It will be noted that each of the forms of the invention employs hingestiles of similar construction which are believed to possess advantageswhich will now be apparent to those skilled in the art.

The disclosure made is by way of example only and it should now bemanifest that changes in the form and arrangement of the elements mai7be made within the scope of the invention which is only to be limited bythe claims which follow.

I claim:

1. A metal door structure comprised of a pair of panels hinged together,each of said panels having an outer stile and a hinge stile and anintermediate panel portion, said outer stile and said hinge stile beingof hollow section, and said stiles and said panel portion of each panelbeing comprised of an integral extrusion.

2. A metal door structure comprised of a pair of panels hinged together,each of said panels having an outer stile and a hinge stile and anintermediate panel portion, said outer stile and said hinge stile beingof hollow section, and said stiles and said panel portion of each panelbeing cornprised of an integral extrusion, said hinge stiles .being ofrectangular section with the hinge end wall beveled, the inner surfacesof said beveled walls being slotted and metal reinforcing stripsdisposed in the slots in face to face parallel relation to said innersurfaces.

3. A metal door structure comprised of a pair of panels hinged together,each of said panels having an outer stile and a hinge stile and anintermediate panel portion, said outer stile and said hinge stile beingof hollow section, and said stiles and said panel portion of each panelbeing comprised of an integral extrusion, said intermediate panelportion being of hollow section with iront and back wall surfaces inalignment with the front and back surfaces of the hinge stile, the outerstile of one of the panels being a hinge stile and the panel having thesame being in section in the shape of a, parallelogram.

4. A metal door structure comprised of a pair of panels hinged together,each of said panels having an outer stile and a hinge stile and anintermediate panel portion, said outer stile and said hinge stile beingof hollow section, and said stiles and said panel portion of each panelbeing comprised of an integral extrusion, said intermediate panelportion being of hollow section with front and back wall surfaces inalignment with the front and back surfaces of the hinge stile, the outerstile of one of the panels being a hinge stile and the panel having thesame being in section in the shape of a parallelograrn, the outer stileof the other panel being rectangular in section and having a slot toreceive a rubber finger piece.

5. A metal door structure comprised of a pair of panels hinged together,each of said panels having an outer stile and a hinge stile and anintermediate panel portion, said outer stile and said hinge stile beingof hollow section, and said stiles and said panel portion of each panelbeing comprised of an integral extrusion, the outer surface of theintermediate panel portion being flush with the outer surfaces of saidstiles, said stiles on their opposite surfaces having ledges, and asheet metal panel bridging said ledges and secured thereto.

GEORGE TRAUTVETTER.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 1,413,364 Smith Apr.'18. 19222,374,925 Corso May 1, 1945 2,020,337 Schwartz Nov. 12, 1935 2,267,572Moynahan Dec. 23, 1941

